Barber&#39;s chair.



E. E. KOKEN, DEGD.l

W. F. KOKEN, EXEGUTOR.

BARBER'S CHAIR.

APPLICATION FILED PEB. 7, 1903. 1,098, 1 57, Patented May 26, 1914.

4 SHEETS-SHE 1.

4 SHEETS-SHEET 2.

Patented May 26, 1914.

E. E. KKEN, DEGD.

W F. KOKEN, EXEoUToR.

BARBERS CHAIR.

APPLICATION FILED FEB. 7. 190s.

' E. E. KOKEN, DEGD.

w. r. KOKEN, EXEGUTOB.

BARBBRS CHAIR.

APPLIQATION FILED rms. 7., 1903.

1,098, 1 57, Patented May 26, 1914.

C?" 7 4 SHEETS-SHEET a.

Wness-s: fnl/enor:

l Horn 65 E. E. KOKEN, DBGD.

W. P. KOKEN, EXBGUTQE.

BARBERS CHAIR.

APPLICATION FILED FEB. rl. 190s.

Patented May 26, 1914.

4 SHEETS-SHEET 4.

[lll/lll. 'll/llllll/11111111111111111111 UNITED STATES PATENT OFFICE.

ERNEST KOKEN, OF ST. LOUIS, MISSOURI; WALTER F. KOKEN, EXECUTOR OF SAID ERNEST E. KOKEN, DEGEASED, .ASSIGNOR T KOKEN BARBE'RS SUPPLY COMPANY, OF' ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.

BARBERS CHAIR.

Speoitioation of Letters Patent.

Application led February 7, 1903. Serial No. 142,402.

l 4useful. improvements in barbers chairs, and

the primary object thereof is to provide novel means whereby the chair is adjusted vertically.

A further object of the invention is to prof vide a chair which can be readily adjusted by pneumatic and hydraulic means or either.

Broadly, the invention consists in admitting air in a compressed state into a casing containing a Huid, preferably oil, which, through the medium of novel construction hereinafter to be described, performs the function of elevating the chair.

`While I desire to employ air in conjunction with oil, by which I attain a very easy action, yet as will be obvious from the following description, either oil or air can be employed separately. I have found, how-l ever, that the employment of air alone does not always prove as satisfactory as air and oil together, inasmuch as air is too resilient. Further objects and advantages will be pointed out in the accompanying description and defined in the appended claims.

In the accompanying drawings in which like numerals of reference indicate like part-s throughout the several views-Figure 1 is a transverse vertical section through the pedestal and a portion of the chair seat; Fig. 2 is a. top plan view thereof with the chair seat removed; Fig. 3 is a. sectional view taken on line 3 3 of Fig. 1; Fig. 4 is a similar view taken on line 4;-4 of Fig. 1; Fig. 5 is a view similar to Fig. 1 with the chair shownv in ele rated position; Fig. 6 is a fragmentary view of the piston casing, parts being broken away; Fig. 7 is a. vertical sectional elevation taken at right-angles to Fig. 1; Fig. 8 is a view in side elevation on areduced scale showing my improvement, the foot rest and a portion of the reclining mechanism; Fig. 9 is a vertical sectional view corresponding to Fig. 1 and showing a modified construction; Fig. 10 is an enlarged sectional view taken on line 10-10 of Fig. 9 and looking from the left; Fig. 11 is a horizontal sectional view on line 11-11 of Fig. 9; Fig. 12 is an enlarged end elevation of the valve casing and operatlng gear; Fig. 13'is a vertical section on an enlarged scale through the o-il release valve box in the top of the piston chamber as seen m Figs. 1 and 5; and Fig. 14 is a top plan view of the same.

The term pedestal as employed in any vclaim signifies generically any form of support for the cylinder 7, one form of pedestal bein now set forth.

T ebase casting 1 is formed with a central upwardly projecting sleeve 2. A flat disk 3 rests upon the base castin 1, and incloses the sleeve 2. This disk maye provided with a suitably ornamented face and the outer edge thereof is secured to the base castin by means of a ring 4. An elongated tu ular drum 5 formed or ornamented with wood or other material seats upon the upper end of the sleeve 2, while a bell 6 encircles the said sleeve and incloses the lower end of said drum. By providing this bell and drum 5, the interior mechanism of the pedestal can be completely covered by light ornamental pieces.

Arranged within the drum and sleeve 2 is a fixed or stationary cylinder?, the same belng provided at its upper end with an outwardly extending flange 8 which overlies and may be secured in any desired manner to the upper end of the drum 5.

Slidably mounted in the cylinder 7 is a piston 9, the same being formed at its upper end with an enlarged portion constituting a head or casing 10, formed at its upper end with an outwardly extending flange provided with apertures through the mediumof which the chair seat can be secured thereto by bolts and the like.

The head 10 is formed at diametrically opposite points with bearings 11 and 12, through which the shafts 13 and 14.- pass. These shafts are arranged one within the other and rotate in unison. The outer shaft is also susceptible of longitudinal movement upon the said inner shaft, and to prevent said longitudinal movement of the said shaft I provide aI screw threaded pin project-ing through the bearing 12 and outer shaft 14, into an annular groove 16,y formed in the inner shaft. This pin is provided at Patented. May 2e, 41914.

its outer end with a suitable head, and, as will be a parent, by having the inner end thereof abutting against the walls of the groove, lon 'tu ina movement of the outer sha-ft will e prevented exce t when the outer shaft is rotated by the andle 17, so that the pin 15 enters the enlargement 18 of the slot in the outer shaft, and to the extent of the length of the enlargement, the outer shaft may be moved longitudinally upon the inner one. The handle 17 is used for the purpose of reclining the chair and thereby operating the footrest, but it is used, also, for the purpose of controlling the vertical adjustment of the chair, and it is pivoted at 19, to the .inner shaft and fulcrumed at 20 to the outer one. 1t will thus be evident, as heretofore described, that both the inner and the outer shafts can be readily rotated in unison, and that when the pin 15 enters the enlargement 18 of the outer shaft a slight longitudinal movement can be imparted to the outer shaft. Thismovement is for the purpose of actuating the arms or bosses 21 and 22, which, when moved, abut against the valve stems 23 and 24, respectively. The inner ends of these valve stems telescope one within the other, the same being arranged in the air chamber 25, and being normally held apart, and the valves 26 and 27 carried thereby, normally kept seated by the spring 28.

When it is desired to admit air into the air chamber 25, the handle or lever 17 is pushed toward the chair body, the pin 15 at that time being in the enlargement 18, which draws the outer shaft over toward the right hand of Fig. 1, and with it the arms or bosses 21 and 22, which last-mentioned boss strikes the outer end of the valve stem 23, and pushes it inward into the air chamber 25, thus opening the valve 26, which admits air into the air chamber 25. The boss 21 is operated by reverse movement of the lever 17, the same striking the valve stem 24, thus opening the escape valve 27 and allowing the air to exhaust through the port 93.

An inlet tube 29 engages the coupling 30, which is secured in any desired manner in the lower end of the cylinder 7, and communicates with a passage 31 formed in the lower end of the said cylinder.

A chamber 32 is arran ed centrally in the piston 9, the same being ormed on its lower end with a screw threaded boss the threads of which are adapted to engage the threaded interior of the extension 33 formed on the lower end of the piston. The upper ends of the walls of this chamber 32 project through a depressed portion, formed in the upper wall of the piston and are received in an annular seat formed in the lower face of the casting 34 in which the air chamber 25 is located.

The path of travel of the air is as follows:

'portion of the piston.

Loana? 1t is brought under pressure from any source of supply (such, for example, as a reservoir or container 29, or an air pump) and introduced throu h the inlet 29, whence it flows through t e passage 31, and through the tube-35 which is arranged in the central chamber 32. This tube is screwthreaded and received in an internally screwthreaded opening 36 in the lower end of the cylinder 7, so as to communicate with the passage 31, and is provided at its upper end with a block 37, which is secured thereon in any desired manner but preferably by threaded engagement. A small chamber 38 is formed between the interior of the block 37 and the adjacent end of the tube 35, from which a duct 39 leads out into the large central chamber 32 in the center of the piston, from whence, following the direction indicated by the arrow, it passes through the duct 40 into the said central chamber 32 at a point above the block or ca 37, and thence through the duct 41 forme in the casting 34 into the air chamber 25, provided the valve 26 has been opened as heretofore described. llhe air theny leaves the air chamber through the port 42, formed partl in the casting 34 and the upper wall 43 o the iston, into the interior of the piston, which or convenience I will term the oil chamber 44 at a point above the oil, and as will be evident, the oil will be forced and, driven out from within the piston through the valve opening 45 (see Fig. 7) in the lower This immediately causes the piston to rise and consequently elevates the chair body; the degree of elevation being controlled by the length of time that ythe valve 26 in the air chamber 25 is open. It should be noted that the pressure of the air on the oil does not cease instantly when the further admission of the air is cut oil", but the air continues to press upon the retreating oil, wherebyv an easy cushion-like effect is obtained. The leather washer 46 at the bottom of chamber 32 eii'ectually shuts oli the pressure of the air through the ducts 39 and 40 when the piston arrives at the highest point of its stroke, because the block 37 moves up and down in the chamber 32 with the movement of the piston 9 (the tube 35 carrying the block 37 being fixed at 36 to the base of the cylinder, but passing sldingly at 47 through the' base of the piston 9). 1t will be observed that the striking of the block 37 on the washer 46, 4supported (as the latter is) by the shoulder 46, would also serve to limit the movement of the piston 9, although the fact that the further admission of air is thus cut off`makes the stop freer frcm shock or jar.

When it is desired to lower the chair seat, the shaft 14 is rota-ted, causing the cam 65 to depress the rod which positively opens the valve 65", and allows the oil to How back into the oil chamber 44 within the piston. l

In theuse of oil in barbers chairs it has been found that it has a tendency to work upwardly along the sides of the piston and eventually make its escape over the upper edge of the cylinder 7. This, as will be obvious,` is a very undesirable feature, owing to the resulting unclean condition of the shop, and in order to obviate the rising of the oil in the `cylinder as just described I provide the piston, at a point a little below its longitudinal center, with a peripheral groove 48 to catch the rising oil, which groove communicates with an outlet 49 which enters or communicates with the chamber of the piston. The oil will thus drop through the outlet 49 into the chamber 50, and, if it eventually nds its way by reason of long accumulation to the top of the said chamber, it will enter within the enlarged upper end or head 10, from whence it will make its way to the port 51, which port is provided with mushroom valve 52 (see Figs. 13 and 14,) said valves being normally kept open by the spring 53, but closed by air under pressure, which is first admitted through the-aperture 54, formed in the side Wall, and later by the pressure on the base 55 of the valve. This valve is closed only when the air is being admitted under pressure through the port 42 into the oil chamber 44. As a result of this action of the valve, it is to be observed thatv a quick exhaust of the air is afforded from the top of the piston, as Soon as the pressure has been sufficiently reduced by the opening of the valve 27.

By reference to the drawings it will be observed that I provide means whereby the oil isv prevented from passing between the walls ofthe piston 9 and cylinder 7 to any great degree. This mechanism comprises a washer or gasket 56 which is impinged against the lower en d of the piston at its edge by means of a cap 57, the same being provided with a threaded aperture in which the threaded extension 33 of the piston is received. I preferably construct this cap so as to form a chamber in which the oil is first admitted from the oil chamber of the piston before being ejected through the port 58 into the cylinder 7 as heretofore de-` scribed.

The means for preventing the rotation of the chair seat will next be described.

lVithn the chamber 50 is arranged a plunger 59, the same having its upper end projecting above the piston and being formed on its lower end with a conical enlarged portion 60. This enlarged lower end of the plunger` is adapted to engage the movable gripping or friction member 61, which is slidably mounted in an opening through the wall of the chamber, the

side of the chamber opposite grip 61 is an inclined projection 62, upon which the plunger-head 60 rides when the plunger is elevated, therebyforcing the grip 61 outwardly so asfunctionally to engage theinterior of cylinder 7 .f l

This chair is adapted to be automatically locked, and, in order to produce this result, I arrange in the chamber 50 aspiring 63, of the helical type, the same havmgits upper end abutting against the lower face of the v plunger-head 60,A and its opposite end bearing against the removable cap A64 whichA closes the lower end of the said chamber.

By this construction the movable member 61 will be normally wedged, and, when it is desired to unlock the chair body, the shaft 14 is rot-ated by the handle 17 so aS to cause the eccentric 22 to engage the plunger 59 and depress the same, thereby moving the wedge or conical member 60 out of engage# ment with the friction 'member 61, and thereby leaving the chair body free to rotate. The plunger 59 may be operated by the same eccentric 22 that abuts against the valve-stem 23; or it may be actuated by a separate eccentric mounted on the shaft 14.

In connection with the herein described means for elevating a chair, I haveA shown means whereby, incombination therewith, the foot rest 66 of the chair can be adjusted and held in any predetermined position. This means comprises a lock-bar 67 which is pivotally attached to a" bracket 68 rigidly secured to the apron 69. The inner end of this lock-bar is arranged between the clamping jaws 70 which are so constructed as to automatically grip the rod, the same being thus actuated by the spring 71.

VWhen it is desired to adjust the foot rest the jaws lare forced apart by rotating the shaft 14, which, through the mechanism heretofore described, will impart rotary movement to the inner shaft, and said shaft by reason of its inner. screw threaded end 72 engaging the opposite free ends of the said jaws as illustrated in Fig. 1, will release the clamp so as to permit the bar 67 to move. When the foot rest has been adjusted to the desired position the shafts 13 and 14 are rotated in a reverse direction, whereupon the spring 71 will operate the jaws of the clamp so that the same will automatically grip the rod and hold the foot rest in its adjusted position.

ico

In Figs. 9, 10, 11, and l2 I have illustrated v as in the preferred form. In this construction it will be further noted that I employ, air directly for elevating the chair, instead of admit-ting air under pressure to force oil in the position to raise the piston and attacbed chair body. An outwardly extending tubular bearing 73 is formed integral with the piston and in said bearing is ournaled the shaft 74, the same being provi ed, within the enlarged upper end of the piston,

with an eccentric 75,which is adapted to positely arranged stems, the outer ends of which project through openings in the casting 76, and the inner ones 4being telescoped one within the other. These valves are normally held closed by a spring 80. The operation of this movement is as follows: Air being admitted through the inlet 81, if the valve adjacent thereto is open, will enter into the air chamber and pass from thence through the duct 82, through the pipe 83, and through the port 84 into the cylinder 7 at a point below the lower face of the piston. The mechanism for opening these valves, as heretofore stated, is, in this form of device, adapted to be operated by foot levers, the same comprising a horizontally disposed rock shaft 89 journaled' in uprights 90, which are secured to the base casting, and on the outer end of which are mount-ed oppositely dispo-sed treadles whereb v the said shaft can be partially rotated in either direction. Connected to the inner end of theA said shaft is a rearwardly curved arm 87, which, through the medium 'of the connecting arm 88, reciprocates the shaft 85 journaled in brackets 86 formed integral with the casting 7 6. Laterally extending arms 91 alternately engage the respective valve stems as their shaft 85 is reciprocated.

When it is desired to lower the chair the operation is the same as in the preferred form, the valve 79 being unseated, which permits the air to exhaust through the port 92.

Having thus described my invention I claim :---v

1. The combination with the pedestal and a cylinder arranged therein of a piston operating in the said cylinder, a separate chamber arranged in said piston, a tube secured to said cylinder and projectin within said separate chamber o the piston a block mounted on the upper end of said .tube and being formed with ducts communicating with said tube andthe upper and lower portions of said chamber, means for admitting the air from said chamber into the piston, a washer located at one end of upwardly ments, ports communicating'with one o saidA compartments and piston proper, valves controlling said ports, a valve arranged in the lower end o the said piston, a locking means, a shaft, and means actuated by the said shaft for actuating said. valves and locking means.

3. The combination with a c linder having a suitable inlet port for t e air, of a' piston operating in said cylinder, said piston being ormed with a separate chamber, means for admitting the air from the inlet ort of said cylinder into the separate chamer of the piston, means for admitting the air from sald chamber into the interior of the piston, valves controlling said last named means, a shaft journaled in said piston,

arms mounted-on said shaft, said arms being adapted to unseat the respective valves alternately, avalve in the lower end of the.

piston, means engaged by one of said arms for operating said last named valve, and means for -rotating and reciprocating the said shaft.

4. The combination withn a cylinder and a piston mounted therein of a normally unseated valve arranged in the upper wall of the piston and a normally seated valve ar.- ranged in the lower end wall, said piston being formed with an exterior groove and an aperture in communication with the upper end of the piston, 'said groove and aperture coperating with said normally unseated valve for thel purpose set' forth, means for forcing liquid from the interior of thepiston through the valve in its bottom to raise-the piston, and means to open said valve when the piston is to descend.

5. rlhe combination with a cylinder of a piston operating in said cylinder, a shaft journaled insaid piston, means for admittin air into said piston, valves controlling sai means, means for admitting liquid from said piston into the cylinder at a point below the bottom of the piston, a locking member slidably mounted in the piston, a spring actuated lunger for forcing the said member outwar ly, means carried by the shaft for depressing said plunger, and means for actuating said first named valves.

6. rlhe combination with a cylinder provided with an inlet of a piston operating in said-cylinder, a member 'having a chamber communicating with the inlet of the cylinder, an exhaust port in said member, a pair of valves mounted in the chamber of said member and having their stems telescoped, a spring arranged between said Loes-,15a i valves forliolding the same seated, andl means for unseating said valves.

7. The combination witha cylinder and.r

a 'piston of means for admitting fluid through saidpiston to said cylinder, valves controlling said means, a shaft, a lsecond shaft inclosing the' first named shaft, means for moving said last named shaft longitudinally,` and means carried by the last named shaft for operating said valves. j

8. In combination. with a stationary cylinder, a piston operating therein, a normally unseated valve mounted in the upper end chamber1 and the interior of the piston proper, a controlling means for-said ports,

a port for said piston located in the bottom thereof, a controlling valve therefor, and a means capable of rotary and riciprocatory movements for actuating said valve and the vontrolling'meansof the ports of said mem- 9. In a. device ofthe type set' forth, a pistonA provided with an a-ir inlet port, and a second port adjacent thereto, a normally unseated valve closinf` said. port and provided with. an aperture 1n the valve shell, a cylinder having a valve controlled outlet, means for operating said. valve, means for supplying compressed air tothe piston, and means for controlling the air inlet port.

l0. In a device of the type set forth, in combination with a cylinder, a piston slidable therein, said. piston being provided with a hollow head and achamber in communication therewith, said head being formed with a port communicating with the interior of the piston, a normally unseated valve for closing said port, one wall of the pist-on being formed with a groove and an opening extending therefrom into the chamber of said; piston.

l1. lin a device 'of 4the ty e set forth, combination with a cylinder adapted to contain oil or liquid, a piston slidable therein and provided in its upper portion with a normally unseated valve, the piston at a point above said valve being enlarged to form a head, and means whereby escaping oil passing up the sides of said piston will enter said piston head.

12. In combination with a cylinder having an inlet in its bottom, a piston adapted to contain liquid, means whereby communication is established between the said inlet and the interior of said piston, means for permitting the liquid to pass into the cyl-l inder, and means whereby any liquid escaping up the sides of the piston will be returned into the upper portion of thepiston.

13'. The combination with a cylinder, of a hollow piston arranged to slide in said cylinder, afluid inlet at the upper end of the piston and a fluid outlet at the lower end' thereof, means normally closing the duid outlet, means forcontrolling the inlet port,

and means for locking the piston to the cylinder, said vmeans comprising a plunger inclosed by the cylinder, and having a head, i

and a friction member engaged b said head.

14. rlfhe combination with a'c air seat of a hollow piston to which the chair seat is secured, a cylinder in which said piston is movable, an inlet at the upper end of the' piston, means for controlling said inlet, said piston having an opening in its lower end, a valve normally closing said opening, means above the.- piston for opening the valves and means for locking the piston to the cylinder, said means comprising a plunger, a friction member in the wall of the piston engaging a part of said plunger,

and a. spring below the plunger for holding same normally in the lockingposition..

15. The combination with a pedestal and a chair seat of a hollow piston. to which piston the chair seat is secured, a cylinder in which the piston operates, a fluid inlet and outlet to and from the piston, means for controlling the -fluid admitted through said inlet, means for locking said piston against movement, and means for positively actuating the locking means and fluid-inlet-controlling means, said actuating means comprising a pair of rotatable shafts arranged one within the other and extending through the head of the piston, means carried by one of said shafts for engagement with the locking and inlet-controlling means for operating the same, a valve operated by said shaft for controlling said piston outlet, and means for exhausting said fluid.

16. The combination with a pedestal and a chair seat of a hollow piston to which the chair seat is secured, a cylinder in which the piston operates, a fluidinlet and outlet to and from the piston, means for controlling the fluid admitted through said inlet, means for locking said piston against movement, means for positively actuating the locking means and the fluid-inlet-controlling means, comprising a rotatable shaft carrying means for engagement with the locking means and fluid-inlet, controlling means, a valve operated by said: shaft for controlling the piston outlet, and means for exhausting said fluid.

17. A barbers chair embodying a cylinder and a piston therein having an outlet, inlet, and exhaust, independent means for controlling the outlet, inlet, and exhaust, means for conducting pneumatic pressure to said inlet, and unitary means having provision for successive independent move- -ments whereby said outlet, inlet, and exhaust con-trolling means are operated.

18. A barbers chair embodying a cylin-l der and a piston adapted to contain a liquid and unitary means for successively operating said outlet, inlet, and exhaust valves.

19. A barbers chair embodying a cylinder and a piston therein, said piston havingan outlet with means for controlling sai outlet, a fluid chamber carried by the piston and havinga port leading into the piston and an exhaust, means for controlling said port and exhaust, means for conducting fluid pressure to said chamber, and connected means for operating the inlet-con trolling means independently of the exhaustcontrolling means.

20. A barbers chair, embod ing a cylinder and a piston provided with inlet and outlet ports, said outlet, being below said inlet, valves for said ports, means for conducting fluid to the inlet port, means for locking the piston against rotation, and means capable of rotary and longitudinal 'movement for operating said locking means and valves.

21. In a barbers chair, a cylinder and a piston therein, means for conducting and controlling pneumatic pressure for reciprocating said piston, means for locking the piston against rotation, and means capable of rotary and reciprocatory movement for operating the pneumatic controlling means and locking means.

22. In a barbers chair, a'cylinder with a piston therein, said piston being adapted to contain a liquid, a suitably controlled outlet in the piston., an air chamber having a suitably controlled inlet and a port leading `into the piston, means for supplying compressed air to such air chamber, means for operat-v ing the piston-outlet-controlling means and the air-chamber-inlet-controlling means,and means for automatically cutting 0E the supply of air to said air chamber when the piston is at the limit of its upward stroke.

23. In a barbers chair, a piston formed with a closed bottom, said piston being adapted to contain a liquid and having an outlet in its bottom, depressible means for controlling said outlet, a suitably controlled inlet to the piston interior, springpressed means for controlling said inlet, means for supplying compressed air to the piston interior through the inlet thereof, and means for depressing said outlet-controlling means and for actuating said spring-pressed inletcontrolling means.

24. In a barbers chair, acylinder, a piston operating therein and adapted to contain a liquid, a chamber having a suitably controlled outlet leading into the piston, said piston having a suitably controlled outlet, means for supplying iuid in a compressed state into said chamber, means for cutting 0H the supply of compressed fluid in said chamber when the piston has reached its uppermost position, and means for exhausting the fluid from the top of piston.

25. A barbers chair embodying a cylinder and a piston adapted to contain liquid therein, said piston having an inlet, a liquid outlet, and an exhaust, means for conducting and controlling pneumatic pressure to said piston inlet, means for controllin-0` said exhaust, a device for controlling said outlet, and connected means for operating said outlet-controlling device in advance of the exhaust-controlling means. t

`26. A barbers chair embodying acylinder and a piston adapted to contain liquid therein, said piston having a liquid outlet, an air inlet and an exhaust, means for conto said piston inlet, in ependent controlling means for the outlet, inlet, and exhaust, connected means for operating each of said controlling means, and a lever for actuating said operating means.

27. A barbers chair embodying a cylinder and a piston therein, said piston having an inlet, an outlet, and an exhaust, means for conducting and controlling fluid pressure to said inlet, means for controlling the outlet, means. for controlling the exhaust, and connected means for operating the outlet-controlling means in advance 01" the eX- haust-controlling means.

28. A barbers chair embodying a cylinder and a piston adapted to contain liquid therein, said piston having an inlet, a liquid outlet, and an exhaust, means for conducting and controlling pneumatic pressure to said inlet, means 'for controlling said eX- haust, means for controlling said outlet, and a shaft carrying devices for operating each of said controlling means. A

29. In combination with a cylinder having a hollow piston reciprocating therein, a chamber in said piston and means to convey a fluid under pressure to said chamber, said means being also adapted to limit simultaneously the upward movement of the piston and to cut 0E the pressure of said fluid, and means suitably to control the Huid pressure.

30. ln combination with a cylinder and a hollow piston reciprocating therein, said piston having three chambers, means for locking the piston in place being disposed` in one of said chambers, a piston-propelling fluid being contained in another of said chambers, means for forcing said pistonpropelling uid out of its chamber being admitted through the third of said chambers; and means for controlling said other means 'ducting and controllin pneumatic pressure 3l. In combination with a cylinder "havoutlet leading into the piston interior, means for conducting fluid under pressure into said chamber, means for operating said piston outlet and said fluid chamber outlet, and

' means for exhausting said fluid.

33. In a barbers chair, a cylinder having a hollow piston reciprocating therein, said piston having a chamber' and adapted to contain a fluid exterior of said chamber, said piston having ain out-let port in the base thereof, and an inlet,` means for supplying fiuid under pressure from said chamber into said piston through said inlet, means for controlling and operating said inlet, separate means controlling and operating aidi outlet, andmeans for exhausting said 34. A barbers chair having a cylinder alid a hollow piston reciprocating therewithin, a passage through said Vpiston, a chamber thereabove, a passage from the chamber to the iston, and valves within the chamber controliing both of said passages.

35. A barbers chair having aV cylinder and a hollow piston reciprocating therewit-hin, a chamber adjacentto said piston, means for conveying fluidl under ressure into said chamber, means for conveying said fluid therefrom to a point where it actuates the piston, means for exhausting the fluid, and a pair of valves having telescoping stemswithin the chamber, said valves controlling the fluid.

36. A barbers chair having a cylinder and a piston reciprocating therewithin,

means for introducing fluid under pressureinto the piston, thereby to cause fluid ressure between the cylinder and the p1ston base, thereby to actuate the piston, and means intermediate theV cylinder and piston to lock the piston in position.

37. A barbers chair having a cylinder and a pistonreciprocating therewithin,

means for introducing fluid under pressure into the piston, thereby to cause fiuid pressurebetween the cylinder and the piston base, thereby to actuate the piston, valves controlling said uid, means to lock the piston in position, and a lever controlling said Valves and said locking means. 38. The combination of a chair-seat, hollow piston which bearsthe same, a cylinder within which the piston reciprocates, a chamber carried on said piston, means to conduct fluid therefrom to a point where it actuatcs the piston, means for exhausting the fluid, and valve-means within the chamber to control said Huid.

39. The combination of a chair-seat, a hollow piston which bears the same, a cylinder within which said piston reciprocates, a chamber carried on said piston, extensible means to conduct Huid under pressure into said chamber, means to conduct fluid from said chamber to a point where it actuates the piston, means 'for exhausting the Huid, and valve-means within the chamber to control said iuid.

40. In a barbers chair, a cylinder, a hollow divided piston having a closed bottom movable 'therein and adapted to carry a body of liquid in one of its divisions,and having an outletin said closed bottom, a chamber carried by the piston having communication with the other division thereof, an exhaust for said chamber communicating with the first division of the piston, and means whereby fluid may be admitted to said chamber through the second division to thereby enter the interior of the first named division of the piston to act on the surface of the body of liquid therein to expel same through the piston outlet.

4:1. In a barbers chair, a cylinder, a hollow piston movable in the cylinder and having a valved youtlet'in its bottom a chamber carried by the piston and having a fluid inlet and a controlled fluid outlet which latter communicates with the piston interior, means whereby fiuid under pressure may be admitted to said chamber through the fluid inlet, and means to simultaneously operate the valves of said piston outlet and said fluid outlet.

42. In a barbers chair, a cylinder, a hollow piston movable therein, stationary means whereby Huid may be introduced into saidl piston, an outlet at the piston base, means carried by the piston for engagement with said stationary means whereby the piston upon reaching its extent of upward movement automatically closes said fluid introducing means, and means whereby the fluid may be exhausted to'allow the piston to descend.

43. In a barbers chair, a cylinder, a hollowpiston movable therein, a fluid outlet in the piston base', means movable with the piston whereby fiuid under pressure may be admitted to the piston top, a fluid exhaust for said means, and means for admitting fiuid under pressure to said first means, said last named means extending through said hollow piston, and means whereby the last named means is sealed when the piston reaches a predetermined point in itsupward movement.

44. In a barbers chair, a cylinder, a hollow piston movable therein, a fluid outlet in the piston base whereby iluid under pressure may be admitted between the plston and cylinder bases to effect raising of the piston, controlled means whereby fluid may be admitted to the top of the piston, and exhausted therefrom, and means extending through the piston interior for conveying fluid under pressure to said controlled means, and means, whereby the piston automatically seals said Huid conveying means when the piston reaches the limit of its upward movement.

45. In a barbers chair, a cylinder, a hollow piston reciprocating therein, said piston having a closed base and being adapted to receive uid therein and having an outlet for the fluid at its base whereby the duid may when under pressure enter between the piston and cylinder bases to thereb effect raising of the piston, valve controlle means whereby fluid under pressure may be admitted to and exhausted from the piston, said piston being also adapted to contain a body of liquid, which liquid when duid under fpressure is caused to act on the surface o the liquid is ejected from said outlet in the piston base to enter between the piston and cylinder bases to thereby effect raising of the piston.

46. A pneumatic and hydraulic barbers chair, embodying a cylinder, a hollow divided piston therein having a closed bottom formed with an outlet in said closed bottom, means whereby fluid is conducted into one division of the piston, controlled means whereby fluid is taken from said first division of the piston and led into a second division thereof, the latter communicating with said piston outlet, whereby the Huid enters between the piston and cylinder bases to eect raising of the piston and whereby said second division of the piston ma be caused to containa body of liquid, the Huid from the first division being conducted into the second division to expelthe liquid from the latter to enter between the plston and cylinder bases to eect raising of the piston.

47. ln a barbers chair, a cylinder, a holmaaar low piston having a closed bottom movable therein, a valved outlet in said piston bottom, a chamber at the up er end of the piston having a valved out et leading into the piston interior, said piston being adapted to contain a liquid, means to actuate said Y let in the space between the closed bottom of the piston and the cylinder base, thereby effecting raising of the piston.

48. In a barbers chair, a cylinder, a hollow piston movable therein, said piston having a closed bottom formed with an outlet, a valve for said outlet, a chamber at the top of the piston, means to conduct Huid under pressure to said chamber, a valve to control said Huid conducting means, a passage between said chamber and the iston interior, a valve for controlling sai passage, said chamber having an exhaust port, a valve for controlling said exhaust port,

and means having separate devices for successively operating all of said valves.

49. In a' barbers chair, a cylinder, a hollow piston therein having a closed bottom with a valved outlet in the bottom, a chamber on 'top of the piston having a valved fluid outlet which communicates with the piston interior, a valved fluid inlet for said chamber, means to supply fluid under pressure to said inlet, a valved exhaust for said chamber and a manually operable member movable to various positions and having a plurality of independent devices thereon for actuating all of said valves when moved to its various positions.

ln testimony whereof l have aiixed my signature in presence of two witnesses this 27th day of January, 1903.

ERNEST E. KOKEN.

Witnesses:

MAUD E. LETGHER, A. E. WAGNER. 

